[ONGERRIT] leaked ODBC statement handles

[Terrence Enger]

On Thu, 2012-07-19 at 12:43 +0200, Lionel Elie Mamane wrote:
> On Wed, Jul 18, 2012 at 03:09:55PM -0400, Terrence Enger wrote:
> > Patch attached.  I think it as we discussed.
> 
> Thanks. Applied & pushed to master.
> 
> I split your patch into three commits:
> 
>  - avoid freeing the NULL handle
> 
>  - ODBMetaDataRS ctor: abort if statement handle allocation failed
> 
>  - stop some leaked statement handles
> 

Note to self:
------------

    Difficulty writing a commit message may be telling you something
    interesting.  Listen to it hereafter, and stop bothering experts
    with work that you could do yourself!

> In particular, in the "ODBMetaDataRS ctor: abort if statement handle
> allocation failed" commit, I moved the abort (exception throwing) to
> the top of the function instead of the bottom. At the bottom, it would
> leak the allocation in m_pRowStatusArray, and a reference count in
> m_pConnection (because acquire has already been called).
> 
> By contrast, the other initialisations done before, in the
> initialisation list are safe: no heap allocation :)

Ah yes.  That is an important fix.


Again, thank you for all the help you have given me along the way to
this small code contribution.

Terry.